Ken Griffin’s AI stocks grabbed attention this quarter after the Citadel billionaire dumped Tesla and picked up Nvidia and Amazon — both of which closed December as his two largest hedge fund stock picks. The move targets the robotaxi market opportunity head-on, and the math backs it up: U.S. light-duty vehicles cover over 3 trillion miles a year, and ride-sharing services charge $1 to $2 per mile. Cut that price in half with autonomous technology and the domestic market still clears a trillion dollars.
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Ken Griffin Bets on Nvidia and Amazon to Dominate the Robotaxi Market
Nvidia — The Infrastructure Behind Every Robotaxi
Ken Griffin AI stocks choices go well beyond a simple GPU bet. Yes, Nvidia chips lead the industry in AI workload performance, but Nvidia autonomous driving also runs a full software stack — Omniverse for city-environment simulation, Cosmos for world modeling, and Alpamayo for real-world vehicle reasoning. On top of that, Hyperion gives companies a standardized blueprint that combines hardware, software, and sensors into one architecture they can actually build from.
Every major OEM and service provider developing self-driving systems currently uses Nvidia autonomous driving technology in some capacity — a point that Nvidia CFO Colette Kress drove home for analysts, telling them robotaxis could generate hundreds of billions in revenue over the next decade. Wall Street forecasts Nvidia earnings to grow at 38% annually over the next three years, and at 35 times earnings right now, that growth looks cheap. Ken Griffin’s AI stocks and his Nvidia choice reflect a long-horizon infrastructure bet that sidesteps the execution risk that individual robotaxi companies carry.
Amazon Zoox — The Only Purpose-Built Robotaxi Already on U.S. Streets
The second half of Ken Griffin’s AI stock choices this quarter centers on Amazon and its autonomous unit, Zoox. Unlike most competitors, Amazon Zoox robotaxis are currently the only purpose-built autonomous vehicles running on public U.S. roads — no steering wheels, no pedals, just four-passenger carriages that travel in either direction. The company has already completed over 350,000 rides in Las Vegas and San Francisco, and it also started testing in Austin, with Miami still coming later this year.
At the time of writing, Zoox still runs under an NHTSA demonstration exemption and cannot charge fares yet. Even so, the company recently filed an application to launch a commercial fleet of up to 2,500 Amazon Zoox robotaxis, and regulators are expected to decide in early April. Morgan Stanley projects Zoox will capture around 12% of autonomous ride volume by 2032, which puts it in fourth place behind Waymo, Tesla, and Uber — still a significant piece of the robotaxi market opportunity.
Beyond the robotaxi angle, Amazon’s core businesses further strengthen the case. Cloud, e-commerce, and digital advertising earnings are forecast to grow 19% annually over the next three years, and right now the stock trades at 29 times earnings — its lowest valuation in a decade. As hedge fund stock picks go, Ken Griffin’s AI stock Nvidia and Amazon choices offer broad exposure to autonomous vehicle infrastructure without betting everything on one company’s timeline. Selling Tesla in the same quarter makes the direction of Ken Griffin AI stocks strategy pretty clear.